20379436

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{521}}^1$

素因数の和:670

約数の個数: 48

約数和(自身を含む): 44900352

約数和(自身を除く): 24520916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 127, 154, 254, 308, 508, 521, 889, 1042, 1397, 1778, 2084, 2794, 3556, 3647, 5588, 5731, 7294, 9779, 11462, 14588, 19558, 22924, 39116, 40117, 66167, 80234, 132334, 160468, 264668, 463169, 727837, 926338, 1455674, 1852676, 2911348, 5094859, 10189718, 20379436]

約数ペア:

[(1, 20379436), (2, 10189718), (4, 5094859), (7, 2911348), (11, 1852676), (14, 1455674), (22, 926338), (28, 727837), (44, 463169), (77, 264668), (127, 160468), (154, 132334), (254, 80234), (308, 66167), (508, 40117), (521, 39116), (889, 22924), (1042, 19558), (1397, 14588), (1778, 11462), (2084, 9779), (2794, 7294), (3556, 5731), (3647, 5588)]